diff --git a/bitcoind-tests/Cargo.toml b/bitcoind-tests/Cargo.toml
index 449114f9..8c79c914 100644
--- a/bitcoind-tests/Cargo.toml
+++ b/bitcoind-tests/Cargo.toml
@@ -10,4 +10,4 @@ edition = "2018"
 elements-miniscript = {path = "../"}
 elementsd = {version = "0.6.0"}
 actual-rand = { package = "rand", version = "0.8.4"}
-secp256k1 = {version = "0.24.0", features = ["rand-std"]}
+secp256k1 = {version = "0.27.0", features = ["rand-std"]}
diff --git a/bitcoind-tests/tests/setup/test_util.rs b/bitcoind-tests/tests/setup/test_util.rs
index fc2fafe4..848e8f18 100644
--- a/bitcoind-tests/tests/setup/test_util.rs
+++ b/bitcoind-tests/tests/setup/test_util.rs
@@ -59,7 +59,7 @@ pub struct PubData {
 #[derive(Debug, Clone)]
 pub struct SecretData {
     pub sks: Vec<bitcoin::secp256k1::SecretKey>,
-    pub x_only_keypairs: Vec<bitcoin::KeyPair>,
+    pub x_only_keypairs: Vec<bitcoin::key::KeyPair>,
     pub sha256_pre: [u8; 32],
     pub hash256_pre: [u8; 32],
     pub ripemd160_pre: [u8; 32],
@@ -77,7 +77,7 @@ fn setup_keys(
 ) -> (
     Vec<bitcoin::secp256k1::SecretKey>,
     Vec<miniscript::bitcoin::PublicKey>,
-    Vec<bitcoin::KeyPair>,
+    Vec<bitcoin::key::KeyPair>,
     Vec<bitcoin::key::XOnlyPublicKey>,
 ) {
     let secp_sign = secp256k1::Secp256k1::signing_only();
@@ -102,7 +102,7 @@ fn setup_keys(
     let mut x_only_pks = vec![];
 
     for i in 0..n {
-        let keypair = bitcoin::KeyPair::from_secret_key(&secp_sign, &sks[i]);
+        let keypair = bitcoin::key::KeyPair::from_secret_key(&secp_sign, &sks[i]);
         let (xpk, _parity) = bitcoin::key::XOnlyPublicKey::from_keypair(&keypair);
         x_only_keypairs.push(keypair);
         x_only_pks.push(xpk);
@@ -359,7 +359,7 @@ fn subs_hash_frag(ms: &str, pubdata: &PubData) -> String {
     );
     let ms = ms.replace(
         "hash256(H)",
-        &format!("hash256({})", &pubdata.hash256.into_inner().to_hex()),
+        &format!("hash256({})", &pubdata.hash256.to_hex()),
     );
     let ms = ms.replace(
         "ripemd160(H)",
diff --git a/bitcoind-tests/tests/test_cpp.rs b/bitcoind-tests/tests/test_cpp.rs
index ec9cc800..20e79ac9 100644
--- a/bitcoind-tests/tests/test_cpp.rs
+++ b/bitcoind-tests/tests/test_cpp.rs
@@ -167,7 +167,7 @@ pub fn test_from_cpp_ms(cl: &ElementsD, testdata: &TestData) {
             testdata.secretdata.sha256_pre.to_vec(),
         );
         psbts[i].inputs_mut()[0].hash256_preimages.insert(
-            sha256d::Hash::from_inner(testdata.pubdata.hash256.into_inner()),
+            sha256d::Hash::from_byte_array(testdata.pubdata.hash256.to_byte_array()),
             testdata.secretdata.hash256_pre.to_vec(),
         );
         println!("{}", ms);
diff --git a/bitcoind-tests/tests/test_desc.rs b/bitcoind-tests/tests/test_desc.rs
index 0f2a22f9..5b222819 100644
--- a/bitcoind-tests/tests/test_desc.rs
+++ b/bitcoind-tests/tests/test_desc.rs
@@ -150,7 +150,7 @@ pub fn test_desc_satisfy(
                 let internal_keypair = internal_keypair
                     .add_xonly_tweak(
                         &secp,
-                        &Scalar::from_be_bytes(tr.spend_info().tap_tweak().into_inner())
+                        &Scalar::from_be_bytes(tr.spend_info().tap_tweak().to_byte_array())
                             .expect("valid scalar"),
                     )
                     .expect("Tweaking failed");
@@ -272,7 +272,7 @@ pub fn test_desc_satisfy(
         testdata.secretdata.sha256_pre.to_vec(),
     );
     psbt.inputs_mut()[0].hash256_preimages.insert(
-        sha256d::Hash::from_inner(testdata.pubdata.hash256.into_inner()),
+        sha256d::Hash::from_byte_array(testdata.pubdata.hash256.to_byte_array()),
         testdata.secretdata.hash256_pre.to_vec(),
     );
     psbt.inputs_mut()[0].hash160_preimages.insert(